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8157552 |
Rotary fluid pressure device and improved parking lock assembly therefor
A rotary fluid pressure device (11) includes an end cap (23) which is disposed rearwardly of, and adjacent, the fluid displacement mechanism (21). The end cap defines a piston cavity (103) in which...
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8156919 |
Rotary vane engines with movable rotors, and engine systems comprising same
Embodiments of rotary vane engines include rotors that rotate about an axis of rotation. The rotors can be moved in directions substantially perpendicular to the axis of rotation to vary expansion...
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8157551 |
Scroll compressor with back pressure pocket receiving discharge pressure fluid
A face of a base of an orbiting scroll member is aligned with a thrust bearing. The thrust bearing includes a back pressure pocket and a seal for sealing the back pressure pocket to entrap a...
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8157553 |
Scroll compressor having a shifted gravity center
In a scroll compressor, a center of a turning scroll body is shifted with respect to a drive central axis so that a distance between a gravity center and the drive central axis in a turning scroll...
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8156756 |
Fluid machine
A fluid machine includes a casing, a compression mechanism for compressing refrigerant, an expansion mechanism for expanding refrigerant, and a rotary shaft connecting the compression mechanism and...
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8152500 |
Scroll compressor build assembly
A scroll compressor build assembly is provided. An outer housing includes multiple shell sections that interfit to provide internal steps that provide seating surfaces. One or both bearing members...
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8152497 |
Compressor
In sealed compressors, in one form of the invention, the compressor housing and the compression mechanism are assembled to one another without fasteners. As a result, the time required to install...
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8152505 |
Rotary expansible chamber device
A rotary expansible chamber device includes intersecting, two-piece vanes that provide expansion/compression chambers as the vanes rotate about a central axis of a rotor housing. The rotor housing...
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8151759 |
Orbital engine
The present disclosure includes an engine having a torodial piston chamber, at least one piston positioned in the torodial piston chamber, and at least one engine valve positioned to interact with...
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8152504 |
Method of operation of a spherical positive displacement rotary machine and devices for carrying out said method
A positive displacement rotary machine with a body having an internal spherical working surface divided into bypass and propulsion areas, a rotor with a working rotational surface, a ring working...
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8152502 |
Scroll compressor having guide ring supporting and urging seal member
A scroll compressor includes a fixed scroll, an orbiting scroll, a crankshaft rotationally supported on a frame to drive the orbiting scroll, a seal member between an orbiting scroll back surface...
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8152503 |
Baffle member for scroll compressors
A baffle member for use in scroll compressors. In one exemplary embodiment, the baffle member is attached to a portion of the crankcase and, in use, deflects lubricant that may be thrown from the...
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8152499 |
Eccentric screw pump
An eccentric screw pump with an annular outer part (10; 40; 74) and an inner part (12; 42; 72) arranged therein has an interior of the outer part (10; 40; 74) and an exterior of the inner part (12;...
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8152501 |
Scroll compressor for preventing performance deterioration and variation due to gas leakage
In a scroll compressor configured to be capable of three-dimensional compression in a circumferential direction and a height direction of spiral wraps, in which top surfaces and bottom surfaces of...
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8147229 |
Motor-compressor unit mounting arrangement for compressors
A method of assembling a compressor, including assembling, first as a subassembly external of the compressor housing, portions of the motor-compressor unit, including a crankcase, mount brackets,...
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8147228 |
Progressing cavity pump/motor
A progressing cavity pump/motor includes a stator tube (12), a rotor (20) within the stator tube, and a coupling assembly (30) interconnecting the upper and lower rotor sections. The coupling...
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8147230 |
Scroll compressor having rearwardly directed fluid inlet and outlet
A scroll compressor includes a chamber formed in a casing and a compartment formed in a rearward end, a fixed scroll mounted within the casing and having a spiral scroll element extended from a...
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8147231 |
Screw compressor having rotor casing with removable discharge opening neighborhood portion
A screw compressor includes a pair of male and female screw rotors which meshes with each other, where a casing storing the pair of screw rotors is divided into a discharge opening neighborhood...
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8142175 |
Mounting base and scroll compressor incorporating same
A scroll compressor assembly includes a mounting base with a pair of support ribs formed into the mounting base, for structurally strengthening the support provided by the mounting base. The...
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8142173 |
Variable displacement vane pump
In a variable displacement vane pump employing a cam ring, a pump rotor, and a plurality of vanes, each slidably fitted into the rotor, a biasing member is provided to force the cam ring in a...
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8137080 |
Compressor assembly comprising a valve unit in the intake region
An air compressor assembly includes a compressor housing, an intake port defined by the compressor housing for intake of the air, and a plurality of guide contours disposed adjacent to the intake...
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8137084 |
Interlocking device for holding body and flange of machines using bean-shaped dowels
An interlocking device for rigidly holding together the body and flange of a hydraulic machine includes a body, flange, gears, sealing elements acting as a body seal and lobe seal adapted to...
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8136503 |
Piston valve internal combustion engine
An internal combustion engine of two perpendicular, toroidal cylinders intersecting at two junctions with each cylinder containing one piston filling half of its volume. The pistons are 180 degrees...
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8137085 |
Gear pump with slots in teeth to reduce cavitation
A gear pump comprises a drive gear being mounted for rotation about a first axis and having a plurality of gear teeth at a radially outer location. A driven gear is mounted for rotation about a...
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8133043 |
Suction duct and scroll compressor incorporating same
A scroll compressor and assembly includes a suction duct to direct refrigerant from the housing inlet to a location upstream of a motor. Additionally, the suction duct includes drain ports that act...
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8133045 |
Self-aligning pump rotor and methods
A rotary fluid device having a housing that defines a pumping chamber, a shaft disposed in the housing, and a rotor disposed in the pumping chamber and engaged with the shaft. The rotor includes a...
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8133044 |
Positive displacement capture device and method of balancing positive displacement capture devices
A positive displacement capture apparatus contains a plurality of positive displacement capture devices which each contain a rotor portion positioned inside a casing portion to act as a least area...
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8128387 |
Discharge chamber for dual drive scroll compressor
A dual drive compressor is disclosed including a discharge chamber having a wall disposed therein forming a plurality of discharge zones within the discharge chamber to attenuate pulsations caused...
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8128389 |
Positive-displacement machine design (variants)
In the first variant, the device comprises a stator and a rotor eccentrically mounted in the stator. A planetary train consists of large and small gear wheels. The large gear wheel is fixedly...
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8128388 |
Scroll-type expansion machine
A scroll-type expansion machine includes an expansion mechanism including an orbiting scroll and a first fixed scroll for expanding a refrigerant and recovering a power, a sub-expansion mechanism...
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8128386 |
Variable flow pumping system
A variable displacement pump and pump control system therefor to pump a fluid at selected pump output flow rates having a variable displacement pump and a fluid volume displacement selection...
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8123506 |
Rotary sliding vane compressor with a secondary compressed fluid inlet
The invention relates to increasing the fluid capacity and the fluid discharge pressure of a rotary sliding vane fluid compressor without significantly increasing the fluid discharge temperature....
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8123493 |
Screw compressor
A screw compressor is disclosed wherein a pair of rotor shafts are disposed horizontally and an oil sump is formed at the bottom of a bearing casing which accommodates bearings for supporting the...
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8118578 |
Rotary pump with sliding crescentoid rotor bodies
A rotary pump device includes a stator chamber with a cylindrical inner wall having intake and exhaust ports therein, and a two-part, expanding rotor eccentrically mounted for rotation within the...
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8118579 |
Gear pump
A pump comprises a driving rotor and a driven rotor that are positioned in a housing such that, as the driving rotor and the driven rotor rotate, the teeth of the driving rotor and the teeth of the...
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8118577 |
Scroll compressor having optimized cylinder oil circulation rate of lubricant
A scroll compressor (CP) in which the cylinder oil circulation rate of lubricant is optimized during the operation to improve the compression efficiency is provided. In the scroll compressor (CP)...
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8117836 |
Scroll type fluid machine and air suspension apparatus using the same
A pressure keeping mechanism is provided downstream of a discharge port of a compressor. The pressure keeping mechanism is set to a small flow path area having only a bypass orifice until a...
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8118576 |
Oil rotary vacuum pump and manufacturing method thereof
An oil rotary vacuum pump of mechanical type is filled with a requested amount of oil at the end of the manufacturing process, then it is stored and then shipped to the user, letting the user avoid...
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8118575 |
Variable displacement vane pump with enhanced discharge port
A variable displacement vane pump which includes an enhanced discharge port. The enhanced discharge port reduces areas of high pressure in the discharge port which would otherwise occur as the...
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8113804 |
Vane pump with rotating cam ring and increased under vane pressure
An example vane pump comprises a shaft driving a rotor. The rotor has a plurality of vane grooves, with a vane received in each of the plurality of vane grooves, and an under vane chamber for...
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8113183 |
Engine and supercharger with liquid cooled housings
The present invention reduces the overheating of sealed oil gear cases and excessive charge air temperatures at high engine speeds in automotive supercharger use by providing liquid cooling of one...
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8113803 |
Lubricating system for aircraft drive
A lubricating pump having a first stage and a second stage; the first stage in turn has an intake connectable hydraulically to a tank of lubricating fluid, and a delivery outlet connectable...
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8113805 |
Rotary fluid-displacement assembly
A rotary fluid-displacement assembly having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric...
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8109252 |
Rotary engine combustion chamber
An apparatus for facilitating combustion in a rotary engine with planetary rotors orbiting inside a housing containing a main rotor. In various embodiments, the planetary rotor has a multi-faceted...
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8110245 |
Semiconductor device, mounting substrate and method of manufacturing mounting substrate, circuit board, and electronic instrument
There is provided a semiconductor device comprising: a first plating layer formed on one surface of an interconnect pattern; a second plating layer formed within through holes in the interconnect...
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8109746 |
Progressing cavity pump/motor
A progressing cavity pump/motor includes an upper stator tube (14), a lower stator tube (16), a rotor (20) sitting between the upper and lower stator tubes, and a coupling assembly (30)...
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8109748 |
Gear tooth and external gear pump
A gear tooth including a concave base connected to its starting point at the root of the adjacent tooth and a top connected to the base via a first transition point. The top of the tooth includes...
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8109747 |
Drive system having a variable output gerotor pump
A variable output assembly including a hydraulic pump disposed on a pump running surface located on a center section, end cap or other hydraulic mounting member. The pump may be a gerotor or other...
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8105059 |
Compressor with screw rotor and gate rotor with inclined gate rotor center axis
A compressor includes a screw rotor and a gate rotor arranged to form a compression chamber. The screw rotor has an outer circumferential surface with at least one groove portion. The gate rotor...
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8104307 |
Expander-integrated compressor and refrigeration-cycle apparatus with the same
An expander-integrated compressor (5A) has a compression mechanism (21) for compressing a refrigerant and an expansion mechanism (22) for expanding the refrigerant. The compression mechanism (21)...
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